Replace your head gasket with an O-ring!
If you send us your head we will machine your head so an O-ring replaces the old gasket.
The heads will be: cleaned, machined to fit a NBR O-ring.
This package comes complete with two O-rings.

Advantages:

Better seal.
Better (higher) compression rate.
Better heat transfer from the barrel to the head.
Cheaper and easier replacement of the sealing.

Price for this machining job: Euro 75,- including two O-rings
Not included: sending costs.